Lubricated high speed rings and traveler for twister frames



Feb. 23, 1960 J. R. MULHOLLAND LUBRICATED HIGH SPEED RINGS AND TRAVELERFOR TWISTER FRAMES 2 Sheets-Sheet 1 Filed Dec. 26, 1956 HI ll 23- llllllJAMES e MuLHoLLA/vo lllll' full n Fj A T TOE/VE YS Feb. 23, 1960 7 J. R.MuLHoLLAND 2,925,705

LUBRICATED HIGH SPEED RINGS AND TRAVELER EoR TwIs'rER FRAMES 2vsheets-sheet 2 Filed Dec. 26, 1956 R\\\\ uw I N VEN TOR. JA MES E. Mt/t/OL L AND 7M 6MM z-M Armen/afs United States Patent O LUBRICATED HIGHSPEED RINGS AND TRAV- ELERFOR TWISTER FRAMES James R. Mulholland,University Heights, Ohio Application December 26, 1956, Serial No.630,501

19 Claims. (Cl. 57-120) This invention relates to textile rings and moreparticularly to novel means for lubricating the traveler of said textilerings.

It is an object of the present invention to provide a textile ringhaving an oil reservoir integrally associated with said ring andremovable together with said ring from a supporting rail and means foraccurately controlling leak-proof flow of lubricant, to the travelerassociated therewith.

Another object of the present invention is to provide a textile ringwith novel means forallowing the traveler associated therewith to seekits own bearing surface or orbit.

A further object of the present invention is to provide a textile ringhaving a lubricant channel formed on the inner face of the ring andhaving means arranged within said channel which are responsive toengagement by the traveler as it travels around the ring in such amanner that the speed of the traveler will inuence and control theminute quantities of lubricant being transferred to the traveler fromthe lubricant channel.

Still another object of the present invention is to provide a textilering having novel means associated therewith whereby a controlled supplyof lubricant is made available to the traveler throughout its circuitpath in such a manner that the traveler and ring will be maintainedsubstantially free from lint.

Still another object of the present invention is to provide a textilering which may be readily adapted for cooperation with a plurality ofdifferent size holes provided in a rail support, and further to providea rail assembly which permits separate maintenance of the individualtextile rings.

Another object of the present invention is to provide a textile ringcharacterized by its structural simplicity, :the ease of assembly of itsparts, its strong and sturdy nature and its low manufacturing cost.Other features of this invention reside in the arrangement and design ofthe parts for carrying out their appropriate functions.

Further objects of the present invention and certain practicaladvantages will be referred to in or will be evident from the followingdescription of one embodiment of the invention, as illustrated in theaccompanying drawings, in which:

Fig. 1 is a top plan view of a textile ring mounted on a supportingtextile rail made in accordance with the present invention;

lmerit of the invention, it is to be understood that the ice presentinvention is not limited to the structural details or the particulararrangement of parts herein shown, as devices embodying the presentinvention may take other forms. It also is to be understood that thephraseology and terminology herein used are for purposes of descriptionand not of limitation, as the scope of the present invention is denotedby the appended claims.

Textile rings currently usedhave proven themselves unsatisfactorybecause of the leakage of lubrication which causes the ruination of thecotton thread and spoilage of the spools being wound. Different ways oflubricating the rings and their associated travelers have been attemptedand one of the most recent consisted of providing an elongatedlubricated reservoir at the underside of the supporting rail with aplurality of lubricant conduits leading from the reservoir to a likenumber of textile rings wherein each ring isA provided withA a lubricantchamber above the level of the lubricant in the reservoir. This methodhas proven unsatisfactory because lit required the removal of all of thetextile rings which were rigidly mounted in the apertures provided inthe rail, in order to service one or more of the rings. By somanipulating the rail, the reservoir was repeatedly turned sideways oreven upside down and leakage of the lubricant upon the thread resulted.In the present invention, l have illustrated my novel textile ring 10removably mounted on a rail section 11. It will be understood that therail is provided with a plurality of textile rings 10. The rings arespaced along the length of the rail and the top of the rail is aperturedas at 12 directly below each ring. Each ring 10 is provided with its ownreservoir 13 which is die cast as an integral part of the ring itself.

, As seen in Fig. 2, the textile ring 10 is supported above the plane ofthe rail 11 in alignment with theaperture 12, by means of threecircumferentially spaced bolts 14 which extend downwardly through thereservoir 13 and are connected to the top of the rail by means of nuts15. Suitable cylindrical spacing elements 16 of desirable length supportthe ring at the desired height above the aperture in the rail 11.Heretofore the rings 10 were rigidly secured within the aperture 12 andthereby necessitated that the rings and apertures have complementarydiameters in order for the ring to be retained within the aperture. Itwill be readily observed through theprovisions of the present inventionthat the standard ring 10 may be used in connection with various sizeapertures. As viewed in Fig. 2, it will be readily appreciated that the.aperture 12 may be somewhat smaller or somewhat larger than that shownin Fig. 2 while the ring is suspended thereabove, as shown in Fig. 2, bymeans of the nuts, bolts and spacers.

Preferably, the reservoir 13 is of rectangular cross section and itslength is such as to extend circumferentiallyl about the entireperiphery of ring 10. The top wall of the reservoir is furnished by asuitable annular plate 13a which is retained thereon by means of thebolts 14 or by any other suitable means. A segment 17 of the .reservoir13 (preferably a quadrant segment thereof) is .the ring it is machinedat its inner diameter to provide a reentrant channel or chamber asindicated at 22, yseg lFigs. 2, 3 and 4.

A phosphorous bronze bearing liner 23 is placed in the channel 22 sothat the inner diameter of the bearing liner 23 1s not flush with theinner face of the ring 10 but rather lies in -a plane which extendsradially beyond the planeY of `the inner face of the ring `in such amanner that the inner face of the bearing liner 23 lies somewhat withinthechannel 22 and provides offset shoulders 24 and 25 with the innerface of the ring, as seen in Fig. 4. The channel 22 has a depthsubstantially greater than the thickness vof the liner 23 and provides alubricant chamber 26 behind the liner 23. The liner 23 is an imperforateannular member proportioned to have a close tit at the upper and loweredges of the channel 22. The liner 23, however, is not bonded orpermanently secured to the body of the ring and the lubricant from thechamber 26 is advanced to the interior of the ring at the upper andlower edges of the liner 23. A tubular lubricant wick 27 made of acotton fabric sometimes referred to as sleeving is arranged behind theliner 23. The tubular wick 27 is eut so that its ends abut each other toform an vannular tubular member which encircle's and abuts therear'surface of the liner 23. A second supply wick 28 of smaller diameterextends approximately/Maf into the chamber '26 behind the tubular wick 27 in contact with the rear surface of said wick 27. The wick 28 isthreaded through a suitable passage or conduit 29 provided in the sidewall of the ring 10 extending laterally and downwardly between thechannel 22 and reservoir 13. The wick 28 extends into the quadrantportion 17 of the reservoir where it is coiled, as seenlin Fig. l, aboutpacking 20. A third wick which may be,l called a feeder wick 28a iscoiled about packing 20 butin no way contacts supply wick 28, and thenpasses through a small groove 13b provided in the under surface of plate13a and into the remainder of the reservoir which contains freelubricant. As seen in Fig. 1, the wick 28a extends throughout the lengthof said free lubricant containing portion of the reservoir, however, itneed not be this long. With the arrangement described above, it will beunderstood that wick 28a extending into the free lubricant containingportion of the reservoir supplies `lubricant to the packing 20. Wick 28communicatesy lubricant between the packing 20 and the tubular lubricantwick 27 in channel 22. llt will be understood lthat wick` 28 supplieslubricant only upon demand or requirement of lubricant by the tubularwick 27. Feeder wick 28a supplies only a limited amount of lubricant topacking 20 which in tum feeds lubricant to supply wick 28 when needed bytubular wick 27.

As the tubular wick 27 is attened by the liner 23 a certain amount oflubricant is released thereby and escapes at the upper end lower edgesof the liner 23. Through the provision of packing 20, it will beunderstood that lubricant will not be supplied as quickly to the tubular'wick 27 as it would if the wick 28 fed clirectly into a free lubricantarea of the reservoir just prior to its contact with tubular wick 27.The packing 20 therefore tends to limit the llow of lubricant to thetubular wick 27 and thereby limits the total quantity of lubricantflowing. It also limits the ow of lubricant to only those periods whenlubricant to needed. This occurs 'only'after the tubular wick has beensqueezed or flattened by the liner 23 and a portion of the lubricantcontained therein has been forced outwardly viafthe upper and loweredges of the lin'er 23. Lubricant is, of course, introduced -into thechannel 22 by capillary action of the wick 28. The provision of thepacking 20 i's also an important factor in maintaining a uniformity oflubricant flow to the tubular wick 27.

The ring 10`provides a body having an upper rim 30 which is 'adapted tobe embraced by the upper hook 31 of a traveler 32 'and a lower rim 33adapted to be embraced by the lower hook 34 of the traveler. lt will be`noted that the *radius of the upper rim 30 is larger than the radiusofthe ylower rim 33. Furthermore, the vertical center line 35 of thelower rim 33 lies radially (with respect to the ring 10) outside of avertical center line 36 of the top of the upper rim 30.

The upper hook 31 of traveler 32 has an enlarged U-shape the baseportion of which extends at substan tially right angles to the shankportion 37 and the outermost arm 38 extends substantially parallel tothe shank portion 37 and at right angles to said base portion. The lower"hook of the traveler 32 is also of U-shape but substantially smallerthan the upper hook portion 31. lt will be noted that the shank portion37 is bent radially inwardly at 40 whereby the upper portion of thetraveler tilts radially inwardly of the ring 10. The traveler 32, ofcourse, is influenced by the pull from a thread member 41 which engagesits upper hook portion 31 and causes the traveler to tilt radiallyinwardly at the top and to further lseek abearing surface for its bottomhook portion. The bearing surface or fulcrurn provided at the bottomactually consists of two point contacts, namely 42 and 43. The arm 38 ofthe upper hook 31 of the traveler rides in point contact at 44 with theouter surface of the upper rim 30 of the ytextile ring 1t), as seen inFig. 3. Stroboscopic examination of the ring while running indicatesthat the traveler shank contacts the ring and bearing liner 23substantially as illustrated in Fig. 4 and it is believed that oilpicked up by the shank of the traveler is conducted downwardly on thetraveler to the points of Contact 42 and 43.

` The precise way in which lubricant is transferred from the tubularwick 27 behind the bearing liner 23 to the traveler 32 is not definitelyunderstood at the present time. It is believed, however, that as thetraveler 32 travels around the ring, ,the shank portion 37 thereof, dueto centrifugal force exerts a pressure against the liner 23, as seen inFig. 4. With reference to Fig. 4', it will be noted that the bend 40 inshank 37 contacts the inner surface of the ring 23 at point v43, justbelow the channel 22. As the traveler is carried around the ring,centrifugal force acts upon the traveler to carry 'the central shankportion thereof radially outwardly causing it to bear upon the liner 23so as to deflect or move the liner 23 against theV tubular wick 27functioning somewhat as a diaphragm pump so that minute quantities oflubricant are squeezed or transferred outwardly via the upper and loweredges of liner 23. lt will be noted' that the -shoulders 24 and 2S ofthe channel 22 provide bearing supports for the shank portion of thetraveler in such a manner that only the portion of the shank of thetraveler intermediate said shoulders contacts the liner 23, therebyproviding a space between the Shanks point of contact with thebearingliner and the shoulders 24 and 2S. Due to the speed of thetraveler, the lubricant, which is preferably composed of oil and aneasily evaporatin'g oil soluble agent of any' suitable type, 'is'atomized. The oil soluble agent evaporates and the oil flows onto thetraveler and is carried to the points of contact, 'as heretoforeexplained. It is further be- -lieved that a vacuum is formed by the highspeed traveler (which travels at speeds in excess of 5,000 feet perminute) in the space between the traveler 32, bearing liner 23 andshoulders 24 and 25 as seen in Fig. 4. rIhi's action deposits only theamount of lubricant necessary to lubricate the points of contact 42 and43 between the traveler and the ring 10 and prevents fugitive lubricantfrom being deposited on the thread 4l as it travels through the upperhook lend portion of the traveler 32.

The present construction provides an additional advantage ,in removinglint `from the ltraveler and thread. With reference to Fig. 2, it willagain be 'noted that the ring 10 is maintained above the plane of thetop portion of the supporting rail l?. and aperture l2. A current of air-i's created and forced upwardly through'the aperture 12 -of the supportrail in present spool winding operation, in previous constructions thering was rigidly secured Within the'aperture 12 to the top of thesupport rail 11, the air of necessity had to travel upwardly through thecentral portion of the ring. However, with the present construction, thehigh speed travel of the traveler as it moves around the ring sets up anair current which causes the incoming air to deflect at right anglesalong the path shown by arrows 47, see Fig. 2, which take a radiallyoutwardly course through the space provided between the bottom of thering 10 and the top of the rail 11. Thus, the lint content within thearea of the center of the ring 10 is substantially reduced. As thethread 41 is fed downwardly. at an angle as seen in Fig. 2, the traveler32 as it moves about a ring 10 causes the thread to form a cone whichsets up air currents in the direction of arrows 48. The air currents 48further aid in removing the lint laden air away from the presentoperating mechanism.

From the foregoing, it will be understood by those skilled in this artthat the present invention is adapted for use with standard textileframes having channel-shaped rail sections. No modification is requiredof the rail or other parts of the frame and the present rings may beused in connection with a rail having a plurality of apertures, whichmay be of varying size. For mounting the present rings in the standardrail, it is only necessary to drill a few holes for the bolts 14 andthen mount the bolts and their associated spacers 16 and nuts 15 in sucha manner that the ring is supported above the aperture in the rail.

In view of the foregoing description, taken in conjunction with theaccompanying drawings, it is believed that a clear understanding of theconstruction, operation and advantages of the device will be quiteapparent to those skilled in this art.

Having thus described my invention and illustrated its use, what I claimas new and desire to secure by Letters Patent is:

1. A textile ring having an upper rim adapted to be embraced by theupper hook of a traveler and a lower rim adapted to be embraced by thelower hook of a traveler, said ring having a reentrant lubricant channelopening into the inner face of said ring, an imperforate liner mountedin said channel, said imperforate liner having an inner diametersomewhat larger than the inner diameter of said ring, the inner face ofsaid liner residing within said channel and forming offset shoulderswith the inner face of said ring, said liner having a thickness lessthan the depth of the channel to provide a chamber in back of saidliner, a tubular wick in said chamber substantially lling the same andbeing in contact with said liner, a lubricant reservoir associated withsaid ring having a quantity of lubricant disposed therein, said ringhaving a bore leading from said chamber in back of said liner to saidreservoir, wick means extending through said bore having one end thereofin the lubricant of saidreservoir and the other end thereof incommunication with said tubular wick containedin said chamber in back ofsaid liner, said wick means providing a constant lubricant supply tosaid tubular wick contained in said chamber in back of said liner, andsaid liner being actuatable by said traveler to cause said tubular wickto provide a predetermined quantity of lubricant to said textile ring.

2. The combination of claim 1 wherein said reservoir is formedintegrally with said ring, said reservoir extending circumferentiallyaround the periphery of said ring, said wick means including packingmeans provided in said reservoir.

3. The combination of claim 1 wherein said reservoir is formed integralwith the material of said ring, said reservoir extendingcircumferentially around the periphery of said ring, the bottom of saidreservoir having a level below that of said channel provided in theinterior face of said ring, and the top of said reservoir having a levelabove -the bottom of said channel, and said wick 6 means includingpacking means provided in said reservoir.

4. A textile ring having an upper rim adapted to be embraced by theupper hook of a traveler and a lower rim adapted to be embraced by thelower hook of a traveler, said ring having a reentrant lubricant channelopening into the inner face of said ring, an imperforate liner mountedin said channel, said imperforate liner having an inner diametersomewhat larger than the inner diameter of said ring, the inner face ofsaid liner residing within said channel and forming offset shoulderswith the inner face of said ring, said liner having a thickness lessthan the depth of the channel to provide a chamber in back of saidliner, a tubular wick in said chamber substantially lling the same andbeing in contact with said liner, a lubricant reservoir extendingcircumferentially around the exterior of said ring having a quantity oflubricant disposed therein, a wick extending into said reservoir andproviding a constant lubricant supply to said tubular wick contained inlsaid chamber in back of said liner, and means on said traveler foractuating said liner and tubular wick to cause a predetermined quantityof lubricant to ow to said textile ring.

5. The combination of claim 4 wherein said lubricant reservoir isprovided with a segmental portion which is divided from the-remainder ofsaid lubricant reservoir, packing means contained in said segmentalportion, a bore between said segmental portion and the remainder of saidlubricant reservoir containing free lubricant, and a feeder wick havingone end portion thereof extending into said free lubricant and the otherend thereof communicating with said packing means. f

6. A textile ring having an upper rim adapted to be embraced by theupper hook of a traveler and a lower rim adapted to be embraced by thelower hook of a traveler, said ring having a reentrant lubricant channelopening into the inner face of said ring, an imperforate liner mountedin said channel, said liner having a thickness less than the depth ofthe channel to provide a chamber in back of said liner, a tubular wickin said chamber substantially filling the same and being in contact withsaid liner, a lubricant reservoir formed integrally with said ring andextending circumferentially around the exterior of said ring, said ringhaving a bore leading from said chamber in back of said liner to saidreservoir, wick means extending through said bore having one end thereofin the lubricant of said reservoir and the other end thereof incommunication with said tubular wick contained in said chamber in backof said liner, said wick means providing a constant lubricant supply tosaid tubular wick contained in said chamber in back of said liner,4

and means on said traveler for engaging with said liner being operableto movably actuate the same and cause said tubular wick to provide asupply of lubricant to said traveler.

7. The combination of claim 6 wherein said lubricant reservoir isprovided with a segmental portion which is divided from the remainder ofsaid lubricant reservoir, a

packing contained in said segmental portion, and a feeder wick havingone end portion thereof extending into said free lubricant and the otherend thereof in engagement with said packing.

8. A textile ring adapted to be embraced by a traveler, said ring havinga reentrant lubricant channel opening into the inner face of said ring,a liner mounted in said channel, said liner having an inner diametersomewhat larger than the inner diameter of said ring, said liner havinga thickness less than the depth of the channel to provide a chambertherebetween, lubricating means in said chamber, a lubricant reservoirformed integrally with said ring and extending circumferentially aroundthe exterior of said ring, lubricating means contained within saidreservoir, means associated with said second named lubricating means andcommunicating between said reservoir and said lubricating means in saidchamber, effec- 7 tive to `supply a lubricant to the latter, saidtraveler being operable to actuate said liner and condition thelubricating means in said chamber to provide a supply of lubricant tolsaid traveler.4

y9. lA textile ring adapted to be embraced by a traveler, said ringhaving a reentrant lubricant channel opening into the inner face of saidring, an imperforate liner mounted in said channel, said imperforateliner having an inner diameter somewhat larger than the inner diameterof said ring, said liner having a thickness less than the depth of thechannel to provide a chamber therebetween, a lubricant reservoir formedintegrally with said ring and extending circumferentially around theexterior of said ring, means communicating between said reservoir andsaid chamber, being effective to provide lubricant to said chamber, andmeans in said chamber responsive to an actuation of said liner to saidtraveler to provide a supply of lubricant to the latter. Y

10. A textile ring having an upper rim adapted to be embraced by theupper hook of a traveler and a lower rim adapted to be embraced by thelower hook of a traveler, lsaid ring having a reentrant lubricantchannel Vopening into the inner face of said ring, an imperforate linermounted in said channel, said liner having a-thickness less than thedepth of the channel to provide a chamber therebetween, a tubular wickin said chamber, a lubricant reservoir on said ring, a packing containedwithin said reservoir, a

feeder wick associated with said packing and communicating between saidpacking and said reservoir, ak supply wick communicating between saidpacking and said tubular wick in said chamber, said feeder and supplywicks providing constant lubricant supply to said tubular wick containedin said chamber in back of said liner.

1l. A textile ring having an upper rim adapted to be embraced by theupper hook of a traveler and a lower rim adapted to be embraced -by thelower hook of a traveler, said ring having a channel opening on theinner face of said ring, a liner mounted in said channel, a lubricantabsorbing wick in said channel behind said liner, said upper rim havinga radius greater than said lower rim, the radial center of said lowerrim being outside of the radial center of said upper rim, said travelerhaving a shank portion connecting said upper and lower hook portions,whereby during use, a portion of said shank is caused to contact saidliner, said liner in turn squeezing said absorbing wick contained insaid channel thereby releasing lubricant, the quantity of which isdetermined in part by the speed of said traveler.

12. A textile ring having an upper rim adapted to be embraced by theupper hook of a traveler and a lower rim adapted to be embraced by thelower hook of a traveler,` said ring having a channel opening on theinner face of said ring, a liner mounted in said channel, a lubricantabsorbing wick in said channel behind said liner, said upper rim havinga radius greater than said lower rim, the radial center of said lowerrim being outside of the radial center of said upper rim, said upper rimhav ing substantially vertical parallel extending sides, said lower rimhaving converging sides to provide a relatively narrow contact area withthe lower hook portion of said traveler, said traveler having a shankportion connecting said upper and lower hook portions, said shankportion having a bend therein substantially adjacent said lower hookportion, said upper hook portion engaging said upper rim in pointcontact, said lower Vhook portion engaging said lower rim portion inpoint contact, said bend in said shank portion adapted to engage saidring in point contact, whereby said upper hook kportion of saidtraveller is caused to tilt radially intermined by the speed ofsaidtraveler.

13. Al textilering having an upper rim adaptedto -be embraced by theupper hook of va traveler and "a lower rim adapted to be embraced bythelower hook 'of `a traveler, said ring having .a channel opening on theinner face of said ring, a liner mounted in said channel, a lubrij cantabsorbing wick in said channel behind said liner, said upper rim 'havinga radius greater than said lower rim, said travellerhaving a shankportion connecting said lupper and lower hooktportions, said shankportion having a bend therein substantially adjacent said lowerv hookportion, said bend in said shank portion adapted to yengage said ring inpoint contact, whereby a portion of the shank is caused to flex radiallyoutwardly during use into contact with saidliner, said liner therebysqueezing said tubular wick contained -in Asaid channeltherebygeleasin'g lubricant, the quantity of which is determined b y"the speed of said traveler.

1 4. In combination, an elongated horizontally disposed textile railhaving a ring opening therein, a textile ring adapted `to be Aassociatedwith said ring opening, said ring having a lubricant channel formedtherein opening -toward the inner face of said ring, an imperforatebearing liner in said channel, the inner `face of said Abearing linerdisposed within said channel and forming offset shoulders with the innerface of said ring, a tubular wick in said channel substantially fillingthe same and being in contact with said liner, a lubricant reservoirintegrally associated with said ring, said lubricant reservoir extendingcircumferentially aroundthe outer periphery of said ring, a packingcontained within .said reservoir, wick means associated with saidpacking and communicating between said reservoir and said tubular wickin said channel, means associated with said ring whereby said ring ismounted above the plane of said textile rail. t y

l5. In combination, an elongated horizontally disposed textile railhaving a plurality of ring openings lthereima plurality of textile ringsone of which is adapted to be associated witheach of said yringopenings, each of said rings having a lubricant channel formed thereinopening toward the inner face of said rings, an imperforate bearingliner in said channel, the inner face of said bearing linercontainedwithin said channel and forming offset shoulders ywith they inner faceof said ring, a lubricant reservoir integrally associated with each ofsaid rings, said lubricant reservoir extending circumferentially aroundthe outer periphery of each of said rings, a conduit extending laterallyand downwardly from said channel to said lubricantlreservoir, means fortransmitting said lubricant from said lubricant reservoir to saidchannel, mounting means lassociated witheach of said rings whereby saidrings are mounted in their entirety above the plane of said textilerail.

16. The combination of claim 15 wherein said mounting means associatedwith each of said rings comprise a mechanical fastener and spacer meanswhich are adapted to engage said rail adjacent the vouter periphery ofsaid ring openings. p l

i7. In combination, :an elongated,horizontallydisposed textile railhaving a ring opening therein, a textile ring, said textile ring adaptedto be associated Awith said ring opening, said ring having a lubricantchannel formed therein opening toward the inner face of said ring, animperforate bearing liner in ksaid channel, and a lubricant reservoirintegrally associated with said ring, said lubricant reservoir extendingcircumferentially around the outer periphery of said ring and lubricantabsorbing means communicating lubricant between said reservoir and saidchannel, -said absorbing means being responsive to an actuation of saidbearing liner by said traveler to provide a supply of lubricant to thesaine.

18. The combination of claim V17 wherein said lubricant 'reservoir isprovided with a -segmental portion divided from' the remainder of saidlubricant reservoir, packing contained in said segmental portion, theremainder of said reservoir containing free lubricant, a feeder wickcommunicating between said packing and said free lubn'- the movement ofsaid liner to cause a predetermined cant in said reservoir. amount oflubricant to be supplied to `said rim surfaces.

1h9. A texltile rirgbhaving rim surfaces fr engagement References Citedin the me of this patent wit a trave er, a u ricant reservoir in sairing opening to the inner face of the same and operable to store a quan-5 UNITED STATES PATENTS tity of lubricant therein, means in saidreservoir defining 2,403,255 Albrecht July 2, 1946 pump means includingan imperforate liner engageable 2,470,736 Atwood et al. May 17, 1949with said traveler and operable by the latter to sldably 2,690,046Wayson Sept. 28, 1954 move within said reservoir, and diaphragm meansdis- 2,831,314 Mulholland Apr. 22, 1958 posed in said reservoir beingactuatable in response to 10 2,840,981 Atwood July l, 1958

